baber/WOPTO huggingface dataset:
Patent GB-1251260-A (GB)
IPC: A23C15/16
Filed: 1969-04-02
Abstract: 1,251,260. A spreadable dairy product. HALL SANDFORD & CO. PTY. Ltd. 2 April, 1969 [8 April, 1968], No. 17186/69. Heading A2B. A spreadable dairy product is prepared by mixing at 60-100‹F fat and non-fat solids both derived from milk, an emulsifier and a stabiliser, the fat content being not greater than 40% by weight, pasteurising and homogenising the mixture at above 100‹F and mixing the product before cooling to below 100‹F to create a continuous solids phase. In a modification the stabiliser may also act as the emulsifier. The homogenising step may be carried out in two stages, the pressures in the first and second stages being 500 p.s.i.g. and 1300-2300 p.s.i.g. respectively. The product may be packed at elevated temperature to sterilise the packing container. Flavours may be added to the mixture prior to homogenisation, the subsequent mixing and packing then being such to keep the mixture effectively sealed to restrict flavour loss. The product may comprise cream, milk and skim milk powder, sodium carboxymethylcellulose, gelatin, locust bean gum, carrageen, citrate, citric acid, sodium benzoate and propionate, salt, flavours and colours.
Patent GB-1266658-A (GB)
IPC: D21G1/00
Filed: 1970-07-16
Abstract: 1,266,658. Papermaking. CROWN ZELLERBACH CORP. 16 July, 1970 [18 Aug., 1969], No. 34613/70. Headings D2A and D2B. [Also in Division F2] A wet-laid web of fibres is advanced at a moisture content between 18 and 40% through the nip provided by a pair of rolls each having a surface hardness at 70F of between 0 and 10, but harder than O, P and J Plastometer (1/8" ball), and applying pressure greater than 50 pounds per lineal inch to the web as it advances through the nip. A headbox discharges stock onto a Fourdrinier wire, and the web is couched, pressed and dried. The roll couple of the invention is then located intermediate the dryers. The rolls may be hollow tubes of metal covered with rubber compounded with finely ground stone aggregate. Cooling liquid may be passed through these rolls. Either one or both rolls may be positively driven. Hydroxy-ethyl starch may be applied at a size press. The paper may be further calendered or supercalendered after full drying.
Patent GB-1267146-A (GB)
IPC: G11B5/54
Filed: 1970-11-18
Abstract: 1,267,146. Magnetic disc playback apparatus. ADVANCED PERIPHERALS Inc. 18 Nov., 1970 [4 Dec., 1969], No. 54759/70. Heading G5R. A carriage 11 movable towards and away from a magnetic record disc 13 carries side by side a head support 15 and a spring arm 29 from which a wing 30 extends laterally across the head 27 and presses it against a surface of the disc when the spring arm 29 is free, a cam surface 33 in the path of the wing 30 causing it to move away from the disc surface and release the head 27 during movement of the carriage 11 away from the disc. As shown, each spring arm 29 carries two wings 30, 31 and is twisted or inclined so as to press two oppositely-facing heads 27 against respective opposing faces of two discs 13.
Patent GB-1288669-A (GB)
IPC: G03B21/11
Filed: 1970-07-28
Abstract: 1288669 Microfiche projectors NATIONAL CASH REGISTER CO 28 July 1970 [21 Aug 1969] 36377/70 Heading G2A In microfilm projection reader for use with microfiche transparencies, an orthogonally movable holder 26 has a transparent cover-plate 49 overlying the transparency 50, and the projection lens 70 is carried in a mounting 27 comprising an outer sleeve 65 biased into contact with plate 49 by leaf springs such as 60, 62, the sleeve being mounted for limited tilting movement within a fixed guide 74 by means of a resilient ring 75. Ring 75 is in a plane containing lens 70 so that, as holder 26 is orthogonally shifted for projection of selected microimages, any tilting of lens 70 does not affect the focus. Focusing knob 80 is connected to shaft 86 by flexible shaft 84, an eccentric pin 90 engaging slot 89 in an inner sleeve 71 of mounting 27 for focusing control. Plate 49 is automatically raised by pivoting about pin 57 due to a counterweight 55, when holder 26 is pulled forward.
Patent GB-1289974-A (GB)
IPC: B30B15/30
Filed: 1969-12-12
Abstract: 1289974 Briquetting press COAL INDUSTRY (PATENTS) Ltd 10 Dec 1970 [12 Dec 1969] 60702/69 Heading B5A A press includes rollers 1, 2 with circumferential rows of material receiving pockets, the rows being separated by partition plates 16-19 spaced along the nip and providing material feed compartments, one for each row. Particulate material e.g. coke breeze, is fed through a funnel 7 to a packer rotor 8 comprising five identical paddles, one for each compartment, located at different radial angles to each other to provide approximately constant pressure loading. The plates extend into grooves 21, 22 in the rollers and taper in thickness in the downward direction.
Patent GB-1295667-A (GB)
IPC: H02M7/48
Filed: 1969-06-27
Abstract: 1295667 Inverting PLESSEY CO Ltd 9 June 1970 [27 June 1969] 32497/69 Heading H2F  A polyphase inverter comprises a plurality of controlled switching means A1, A2, B1, B2, C1, C2 operable sequentially so as to connect a plurality of windings PR, PB, PY to a D.C. supply such that, according to the states of the switching means, each winding has a first or second portion of the voltage of the D.C. supply or none of said voltage applied across it and including a shift register for activating the switching means in the appropriate order so as to produce stepped sine waves across the windings. A pair of such polyphase inverters each producing a stepped sine wave may be connected together and provided with means for varying their relative phase so as to control the output voltage of the combination. Fig. 6 shows the combination of a pair of three-phase inverters each using a bridge of six transistors or thyristors (represented by switches A1...C2; Aa1... Ca2), the first-bridge feeding primary windings PR, PB, PY of an output transformer whilst the second bridge feeds primary windings PaR, PaB, PaY. The main converting elements of the first inverter are controlled in specified order by means of bi-stable circuits (Fig. 4, not shown) driven by a twelve-stage shift register 54 (Fig. 5), a further shift register 54a drives bi-stable circuits controlling the main converting elements of the second inverter. The shift registers 54, 54a are driven by pulses on line 56 after reduction in frequency by counters 66, 68. The combined output voltage is adjustable by delaying the phase of the second inverter by means of a device 72 controlled by a voltage 54 which determines the reset time of details 68 and 54a.
Patent GB-1295925-A (GB)
IPC: A01K9/00
Filed: 1970-09-17
Abstract: 1295925 Support for feed vessels G P ROSEMILLER 17 Sept 1970 44460/70 Heading ASX [Also in Division A1] A rigid holder 10 for a similarly shaped animal feed vessel 25 of the type feeding liquid downwards to an animal through a teat feeder 35 may have skeletal or solid walls. The top 20 is open and sufficiently large to accept the feed vessel which is retaind by the narrower lower portion of the side walls 14  adjacent the smaller bottom opening 21 through which nozzle 30 of the feed vessel protrudes. The feed vessel may be stiff enough to retain its shape and have nozzle 30 formed integrally and an air vent hole 26. Alternatively it may be a flexible bladder initially expanded with liquid (to the solid line 4, Fig. 4) which collapses (broken lines 40) as the liquid is drawn out. A nozzle niece 44 is fitted to the bladder by inserting it through the neck 41 and gripping the neck against it with clip 45.
Patent GB-1295951-A (GB)
IPC: G06V30/144
Filed: 1970-05-29
Abstract: 1295951 Automatic curve tracing apparatus IWATSU ELECTRIC CO Ltd 29 May 1970 [31 May 1969 (4)] 25975/70 Heading G4H In automatic curve tracing apparatus in which a pattern or drawing to be followed is traced by performing a series of closed path scans 51, 52, 54, 57 (Fig. 10) with a detector 21 (Fig. 7), to process a branch 55 when an intersection point b 3  of curve and scan path is detected during scan 53, the scan position is stored in a memory 126, directions corresponding to the further intersection points b 1  and b 2  being stored in tracing direction memory 124 and tracing forbidding direction memory 125. When at the next scan the intersection point C 3  is sensed, the direction of the branch is determined and this direction is stored in a memory 134 together with the scan position when the branch was detected. After the main curve portion has been processed, the detector is then positioned in accordance with the contents of memory 134 to process the branch 55. Subsequent branches are similarly processed. Crossing points are also similarly processed except that two directions are stored, the detector first being moved in one of these directions which is then erased from the memory and the detector then being returned to trace the remaining portion of the curve in the second direction. A crossing judging circuit 141 distinguishes between crossing points and branch points when the detector senses four intersections during a scan.
Patent GB-1296477-A (GB)
IPC: B41M5/165
Filed: 1970-07-24
Abstract: 1296477 Colour-reactive copying sheets FUJI PHOTO FILM CO Ltd 24 July 1970 [29 July 1969] 36059/70 Heading D2B Pressure-sensitive copying paper has a coating of micro-capsules containing a colourless colour-former in solution in a chlorinated straight-chain paraffin. The solvent may also contain chlorinated diphenyl, and the solute may be malachite green lactone, benzoyl-leucomethylene blue, 3, 3-bis-(p-dimethylaminophenyl)-6-dimethylaminophthalide, rhodamine- B-lactam, a 3-dialkyl-amino-7-alkylaminofluorane or 3-methyl-2, 2'-spiro-bi (benzo[f] chromene). The second reagent, an electron-acceptor, may be on the same support sheet or on a separate copy-receiving sheet.
Patent GB-1296673-A (GB)
IPC: B23Q35/128
Filed: 1968-11-12
Abstract: 1296673 Photo-electric line follower BRITISH OXYGEN CO Ltd 10 Nov 1969 [12 Nov 1968] 53629/68 Heading G1A [Also in Division G3] A line tracing apparatus includes a rotatable tracer head incorporating two offset photoelectric devices, which oscillate across a line being followed and produce displacement and orientation signals, wherein the amplitude of the displacement signal is used to slow down the movement of the tracer head. As shown, a line tracing head 2 is rotated by a steering motor 10 on a carriage 12 traversed on a beam 14 by a motor 16. The beam 14 is driven along rails 20 by a motor 28. The head 2 incorporates two photo-cells which are oscillated in unison across a line on a platen 30. The steering photo-cell controls the motor 10 and the displacement photo-cell which is mounted on the rotational axis of the head, controls the motors 16, 28 through a resolver 34. The displacement photo-cell is employed to slow-down the speed of travel of the tracer head at sharp bends by reducing the voltages applied to the resolver windings as a function of the photocell output voltage or to a pre-set value at a threshold value of the output voltage.
Patent GB-1304944-A (GB)
IPC: H01J37/20
Filed: 1970-06-29
Abstract: 1304944 Electric analogue calculating ASSOCIATED ELECTRICAL INDUSTRIES Ltd 10 June 1971 [29 June 1970] 31456/70 Heading G4G [Also in Division H1] A specimen stage of a microscope (see Division H1) can be provided with electric analogue calculating circuitry to control the movements of the stage. The circuitry automatically provides translatory movement to maintain a point of interest on the object on the axis of the microscope when the stage is tilted and also converts a tilt relative to this axis into two angles about respective tilting axes of the stage. The circuitry consists of potentiometers mounted on the shafts of motors controlling the movements of the stage, the potentiometers having trigonometrical characteristics. The signals derived from these potentiometers are combined together with signals from further potentiometers which are set according to the degree of tilt desired, in accordance with relationships stated in the Specification, and fed back to the motors to form a self-balancing system.
Patent GB-1319416-A (GB)
Title: Flexible decorative surfacing material and method for producing
IPC: B44C5/04
Filed: 1971-02-04
Abstract: 1319416 Coated sheet materials FORMICA INTERNATIONAL Ltd 4 Feb 1972 [4 Feb 1971] 3859/71 Heading B2E [Also in Divisions B5 and C3] A substrate formed from one or more Kraft paper webs impregnated with a thermosetting phenolic resin is coated with a layer of an adhesive and a layer of polymeric material by a hot-melt coating process. The adhesive layer may be a mixture of nitrile rubber with a vinyl alcohol/vinyl acetate copolymer which is applied as a solution. The polymeric material may be PVC which may be transparent or pigmented or may be a polymer or copolymer of vinyl chloride, styrene or an ethylenically unsaturated carboxylic acid or ester. Preformed layers may be applied over the coating. These preformed layers may carry a design, be transparent or opaque.
Patent GB-1322405-A (GB)
Title: Oil systems for gas turbine engines
IPC: F01D25/18
Filed: 1970-10-02
Abstract: 1322405 Gas turbine ducted fan engines - lubricating systems DEFENCE SECRETARY OF STATE FOR 29 Sept 1971 [2 Oct 1970] 46925/70 Headings FIG F1J [Also in Divisions F2 F4] A lubricating system for a gas turbine engine has an oil tank from which oil is supplied to and returned from the engine, there being an oil cooler in the tank in the form of an elongate passage defined between an external wall of the tank and an outer wall, the outer wall being exposed to a flow of cool air and the cooler passage opening directly into the oil tank. As described the oil tank is located in the flow splitter of a gas turbine ducted fan engine. Oil is drawn from the tank via duct 20 by a pump 21, fed via duct 22 to a gear box 8 and returned via duct 24 to the oil tank. On return the oil is passed via a valve 26 to oil coolers formed by annular walls 14 which surround the annular oil tank, and returned to the oil tank via an oil/air separator plate 28. The walls 12 of the tank may be corrugated and seam welded to the outer walls 14 thereby providing annular channels for the oil in the cooler. The valve 26 is arranged so that in the event of the coolers becoming blocked e. g. due to congealation, the returning oil can be returned directly to the tank whereby the hot oil in the tank can melt the congealed oil.
Patent GB-1331019-A (GB)
Title: Fuel tank
IPC: B60K15/03
Filed: 1972-04-21
Abstract: 1331019 Vehicle fuel tanks M L BERG 21 April 1972 [21 April 1971] 18710/72 Heading B7H A vehicle fuel tank 1, having a filler neck 2 and cap 9, is provided with a flexible fuel bag 4 which is of slightly greater maximum volume than the tank 1 and which has a separate inlet 6 and outlet 10. The bag inlet tube 7 may be pulled up into the tank filler neck 2, after removal of cap 9, by means of a chain 8 so that the bag 4 may be filled with fuel and re-sealed by cover 5. The bag outlet tube 10, which is attached to the tank outlet pipe 3, and the chain 8 are long enough to allow the bag 4 to be completely withdrawn from the tank 1 for e.g. inspection. The tube 10 is reinforced to withstand the weight of fuel above it and may be pre-tensioned so that it tends to adopt a coiled shape, accommodated by a conical recess 11 in the bottom of tank 1, or may be spring urged to lie around the periphery of the tank bottom.
Patent GB-1334183-A (GB)
Title: Headset
IPC: H04R1/10
Filed: 1971-10-21
Abstract: 1334183 Piezoelectric microphones; headsets STANDARD TELEPHONES & CABLES Ltd 21 Oct 1971 48953/71 Heading H4J A headset (Fig. 1) comprises a housing 10 containing an insert earphone 21 (Fig. 2) having an earpiece 11 for insertion in a user's ear, a microphone 13 carried at the end of a boom 12 formed from a piece of plastics tube, and a head pad 42 attached to the housing 10 by an underthe-chin bond 15. The upper end of the microphone boom has an enlarged portion 18 which slides both longitudinally and rotationally in a recess in the housing, the rotational movement being limited to 150 degrees to prevent lead damage. When longitudinal movement of the boom occurs the microphone lead is pushed into or pulled out of a cylindrical cavity 24 contained in the housing. The microphone (Fig. 7) is of the type disclosed in Specification 1,278,009 in which a piezo electric transducer is mounted by a rubber or other flexible sealing ring mid way along a cylindrical housing. The two part housing is closed at both ends, 314, 324 and holes 316, 325 are provided for the ingress of sound. The cavities formed between the transducer and the cylinder ends are arranged to be acoustic resonators at a predetermined frequency e.g. 4 KHz. and are said to provide an upper frequency limit to the microphone output. The cavities may have an open celled foam, e.g. polyurethane contained therein behind the apertures 316, 325. A preamplifier 26 is provided in the housing 10 for the microphone. The insert earphone 21 is a magnetic diaphragm electro-acoustic transducer of the miniature "button" type without its back cover which is held in the housing by a ring 23 and with a disc (not shown) behind it. Alternatively a complete earphone with its back cover may be used. The housing is in two parts 16, 17 to allow for the insertion of the components. The earphone may be inserted from the open end of cavity 22 and be held in place by a bent over lip. The housing has a further cavity 27 in which terminal pins may be housed to enable the connections between a five core cable 14 and the various components to be effected. The head pad 42 may be replaced by a second earpiece 11 and holes may be bored through the mounting 40 to enable the user to hear external sounds. Alternatively a second earphone may be provided, the leads to it being carried from the housing 10 inside the under-the-chin band 15. Specification 1,278,009 is referred to.
Patent GB-1335451-A (GB)
Title: Vacuu-ultraviolet photon counter
IPC: G01T1/28
Filed: 1971-02-17
Abstract: 1335451 Photo-electric detectors AKADAMIE DER WISSENSCHAFTER DER DDR 17 Feb 1971 4834/71 Heading H1D A vacuum ultra-violet photon counter comprises a photo-emissive cathode 3 the emission from which is focused on an aperture in a diaphragm 5 which prevents the passage of field emission electrons and of stray light and beyond which is an electron detector, such as a scintillator or a solid body detector. In the arrangement shown the detector is a scintillator 7, preferably a plastics scintillator and may be frusto-conical in shape; its surface should be polished and it may be coupled to a photomultiplier 8 by means of a plastics material so that light from the scintillator passes either directly or by means of a reflector 9 to the multiplier. The photo-cathode 3 should have a flat polished surface and may be coated with an insulating material such as calcium chloride to reduce field emission. The cathode may be exchangeable so that a material with a desired spectral characteristic may be used, and it is attached to a tubular lens 4 to which a 20 kv. supply is connected in operation through the lead 10. The electrodes are mounted within an evacuated enclosure 2 into which passes the input radiation from a slit 1.
Patent GB-1337959-A (GB)
Title: Electrical resistor thermometers
IPC: G01R17/10
Filed: 1970-07-10
Abstract: 1337959 Resistance measuring bridges K D G INSTRUMENTS Ltd 8 July 1971 [10 July 1970] 33607/70 Heading G1U In a temperature measuring arrangement in which a temperature sensitive resistance 1 constitutes one arm of a bridge 1, 6, 11, 12, the voltage (9) applied to the supply diagonal of the bridge is controlled in dependance on both (i) the current through the temperature sensitive resistance 1, so as to tend to maintain this current constant, and (ii) the voltage across the output diagonal of the bridge, so as to tend to linearize the relation between this voltage and the temperature. The temperature sensitive resistance 1 is remotely located and is connected into the bridge by separate current and voltage leads 4, 5 and 2, 3, the bridge supply 9, 8 being applied to the two branches 1, 6 and 11, 12 of the bridge via separate resistors 7, 10 so as to minimize the effect of the lead resistance 5. A detector 14 senses what is substantially the voltage across the bridge arm 6, which voltage is proportional to the current through the temperature sensitive resistance 1, and a detector 13 senses the bridge unbalance voltage. The two detector outputs are combined in an amplifier 16 and synchronously rectified (17) to provide a signal controlling the amplitude of the oscillations generated by the source 9. The output of the detector 13 is also synchronously rectified (15) to provide a signal proportional to the temperature. Sensitivity is varied by changing the fraction of the output of detector 13 supplied to the amplifier 16.
Patent GB-1340178-A (GB)
Title: Desensitizing printing mediums
IPC: B41M5/10
Filed: 1970-11-23
Abstract: 1340178 Pressure-sensitive record sheets W C HELLER Jnr 23 Nov 1970 [8 Dec 1969] 51423/72 Divided out of 1339902 Heading D2B [Also in Division H5] Pressure-sensitive record sheets capable of being desensitised by passage through an induction heating coil comprise a substrate, e.g. of paper, coated with a pigmented transfer layer containing a ferromagnetic oxide, e.g. γ. Fe 2 O 3 , or Fe 3 O 4 , and an outer non-film layer. The latter may be prepared from an aqueous polyvinyl chloride dispersion. In modifications, the ferromagnetic oxide may only be present in the outermost layer, and the pressure-sensitive record sheets may only consist of a single layer on a substrate, the layer being formed from a liquid composition comprising a ferromagnetic oxide, polyvinyl chloride powder or dispersion, dibutyl phthalate, and optionally carbon.
Patent GB-1346357-A (GB)
Title: Rotary ball valves and plug cocks
IPC: F16K5/08
Filed: 1971-09-13
Abstract: 1346357 Valves WILMOT BREEDEN (TRUFLO) Ltd 11 Sept 1972 [13 Sept 1971] 42657/71 Heading F2V A rotary cylindrical, conical or ball valve has a pressure relief valve 18, Fig. 2, in the wall bf the rotary closure member 10 to relieve pressure of fluid trapped in the flow passage 17 of the member 10 when it is in its closed position, to the inlet or outlet of the valve. This avoids damage by high pressure created by gasification of trapped liquefied gas. The helical spring 22 of the relief valve may be replaced by two concentric helical springs of opposite hand, Figs. 3 to 5 (not shown).
Patent GB-1346894-A (GB)
Title: Needling methods and apparatus
IPC: D04H18/00
Filed: 1971-04-19
Abstract: 1346894 Needling apparatus WOOL INDUSTRIES RESEARCH ASSOCIATION 19 April 1971 [8 Jan 1970] 951/70 Heading D1R A fibrous lap or batt is needled repeatedly and at least partially by moving it to and from a stationary needle bed. The needling apparatus may comprise needles 16, 17 and barrier plates 10, 11 between which the lap or batt is advanced by endless belts 30, 31. Plates 10, 11 may be reciprocated by electromagnets 40-43. or by pneumatic, hydraulic or lever and cam means. Flexible sheets 22, 23, 26, 27 facilitate the passage of the lap or batt. The needles 16 may be directly opposite, or offset from, needles 17. The needles may extend at an angle to the lap or batt. The plates may be moved non-linearly, possibly in a direction not normal to the direction of lap or batt progression, and may be moved at the inlet of the needling zone than at the outlet. The lap or batt may be progressed continuously, at a constant or varying speed, or intermittently with pauses while the needles penetrate the lap or batt. The lap or batt may be so needled while vertical.